Dr. Jeffries is a microbial biochemist and physiologist with forty years of experience in biofuels. He is recognized internationally for expertise in pretreatment and saccharification of cellulosics and metabolic engineering of yeasts. He is the founder and President of Xylome Corporation and Professor Emeritus at the University of Wisconsin, Madison. Dr. Jeffries received the Charles D. Scott award for basic contributions to bioconversion technology in 2003 and the Forest Service Award for Technology Transfer in 2006. He worked for 32 years at the USDA Forest Products Laboratory where he served as Director Institute for Microbial and Biochemical Technology from 1998 to 2004, then as a Microbiologist ST until his retirement at the end of 2012. He has published 165 peer-reviewed articles and holds 12 patents in yeast and enzymatic bioconversion technology. Dr. Jeffries is an SIMB Fellow, a past member of the SIMB Board of Directors and past President of the Society.